diff --git a/src/intel/compiler/brw/brw_nir_rt.c b/src/intel/compiler/brw/brw_nir_rt.c
index 184657d5434..77fafa42b31 100644
--- a/src/intel/compiler/brw/brw_nir_rt.c
+++ b/src/intel/compiler/brw/brw_nir_rt.c
@@ -506,6 +506,8 @@ brw_nir_create_raygen_trampoline(const struct brw_compiler *compiler,
    };
 
    brw_nir_optimize(&pt);
+   /* brw_nir_optimize undoes late lowerings. */
+   NIR_PASS(_, nir, nir_opt_algebraic_late);
 
    return nir;
 }